Quote:
Originally Posted by JAVAMAN
Hi i have a ryobi 725r trimmer.. the other week i tried using it. I pulled the pull string and it seems to be stuck on something, I have abut 12"'s of rope out of it. I can not get it to retract back into the weed wacker . Can anyone help me I really appreciate it.
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I hope your piston isn't frozen up in the cylinder. This happened to me last week. It turns out my engine is an older type which used a large diameter clutch rotor and drum and a piston with a single ring. This part has been dis
continued and the replacement piston/ring/rod assembly to fit the 725r has 2 compression rings which would intuitively seem to provide better reliability
against this kind of failure as well as longer life (at least as far as keeping
compression is concerned). The new smaller clutch assembly is also a more
normal looking design than the old style one (which used a single spring
which was simply curled around into a ring and rode in a deep groove cut
into the sides of the clutch rotor and counterweights). I rather liked the
idea of the larger diameter drum but the new type seems like it would be
more reliable.
WeedChopper
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